Question

luminosity n.光明；光度；发光体 (1) 耀眼的光芒透射着苍白的幕墙。(2) 发光度是对比我们太阳的发光度测得的。(3) 天文学家心照不宣地默认，光度和颜色都相同的恒星具有相同的质量。(4) 蜡烛是基本照明材料。 You might describe a bright and lively oil painting in terms of its luminosity, or marvel at the luminosity of a brilliant sunset. Astronomers use the word luminosity to talk about a specific property of physics, the energy given of by an astronomical object in a certain amount of time. There's a direct correlation between this amount of energy and the object's brightness. The Latin root is lumen, meaning "light."

Accepted Answer

英 [ˌluːmɪ'nɒsəti] 美 [ˌluːmɪ'nɒsəti] (1) Luminosity glows through pale velum walls.(2) Its luminosity is measured relative to that of our sun.(3) Astronomers tacitly assume that stars of the same luminosity and color all have the same mass.(4) The candle is the basic unit of luminosity. Luminosity is the quality of something that gives off light or shines with reflected light. The most noticeable quality of a large, sparkly diamond is its luminosity. 1[N-UNCOUNT 不可数名词]（恒星等的）光度，亮度 The luminosity of a star or sun is how bright it is.   [TECHNICAL 术语]For a few years its luminosity flared up to about 10,000 times the present-day luminosity of the Sun.它的亮度有几年一度达到了现在太阳亮度的一万倍左右。

英语单词	luminosity
英美音标	英 [ˌluːmɪ'nɒsəti] 美 [ˌluːmɪ'nɒsəti]
中文释义	n.光明；光度；发光体
英语例句	(1) Luminosity glows through pale velum walls. (2) Its luminosity is measured relative to that of our sun. (3) Astronomers tacitly assume that stars of the same luminosity and color all have the same mass. (4) The candle is the basic unit of luminosity.
中文例句	(1) 耀眼的光芒透射着苍白的幕墙。 (2) 发光度是对比我们太阳的发光度测得的。 (3) 天文学家心照不宣地默认，光度和颜色都相同的恒星具有相同的质量。 (4) 蜡烛是基本照明材料。
vocabulary简明	Luminosity is the quality of something that gives off light or shines with reflected light. The most noticeable quality of a large, sparkly diamond is its luminosity.
vocabulary扩展	You might describe a bright and lively oil painting in terms of its luminosity, or marvel at the luminosity of a brilliant sunset. Astronomers use the word luminosity to talk about a specific property of physics, the energy given of by an astronomical object in a certain amount of time. There's a direct correlation between this amount of energy and the object's brightness. The Latin root is lumen, meaning "light."
柯林斯解释	1 [N-UNCOUNT 不可数名词]（恒星等的）光度，亮度 The luminosity of a star or sun is how bright it is. [TECHNICAL 术语] For a few years its luminosity flared up to about 10,000 times the present-day luminosity of the Sun. 它的亮度有几年一度达到了现在太阳亮度的一万倍左右。

Luminosity Sun Astronomers Quality Bright Energy Amount 英